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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ContentLayerChromium_h
#define ContentLayerChromium_h
#if USE(ACCELERATED_COMPOSITING)
#include "TiledLayerChromium.h"
#include "cc/CCTiledLayerImpl.h"
namespace WebCore {
class LayerTilerChromium;
class LayerTextureUpdater;
class Region;
class ContentLayerDelegate {
public:
virtual ~ContentLayerDelegate() { }
virtual void paintContents(GraphicsContext&, const IntRect& clip) = 0;
};
// A Layer that requires a GraphicsContext to render its contents.
class ContentLayerChromium : public TiledLayerChromium {
public:
static PassRefPtr<ContentLayerChromium> create(ContentLayerDelegate*);
virtual ~ContentLayerChromium();
void clearDelegate() { m_delegate = 0; }
virtual bool drawsContent() const;
virtual void paintContentsIfDirty(const Region& occludedScreenSpace);
virtual void idlePaintContentsIfDirty(const Region& occludedScreenSpace);
virtual void setOpaque(bool);
protected:
explicit ContentLayerChromium(ContentLayerDelegate*);
private:
virtual LayerTextureUpdater* textureUpdater() const { return m_textureUpdater.get(); }
virtual void createTextureUpdaterIfNeeded();
ContentLayerDelegate* m_delegate;
RefPtr<LayerTextureUpdater> m_textureUpdater;
};
}
#endif // USE(ACCELERATED_COMPOSITING)
#endif
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